Simplify the expression. Assume that all variables represent nonnegative real numbers. y +  - 4y

A. (2x - y)(2x + y)
B. (3x - y)2
C. (3x - y)(3x + y)
D. (2x - y)2

Answer: D

Mathematics

You might also like to view...

Find the sum or difference.(4a4 - 7a2) + (8a4 - 3a2)

A. 2a6 B. 12a8 - 10a4 C. 12a4 - 10a2 D. 2a12

View
Mathematics

Solve the equation.log3 (x - 5) + log3 (x - 11) = 3

A. {14} B. {14, 2} C. ? D. {2}

View
Mathematics

Provide an appropriate response.Find the slope of the graph f(x) = 7 cos x at x = .

A. - 
B.
C.
D. - 

View
Mathematics

Find the center and radius of the circle.x2 + y2 - 2x + 6y - 71 = 0

A. (-3, 1); r = 9 B. (3, -1); r = 81 C. (1, -3); r = 9 D. (-1, 3); r = 81

View
Mathematics